紫珠酮素

(4b'S,8a'S)-2'-isopropyl-4b',8',8'-trimethyl-4b',5',6',7',8',8a',9',10'-octahydro-3'H-spiro[[1,3]dioxolane-2,4'-phenanthren]-3'-one

11,11-ethylenedioxy-9βH-abietan-12-one

(4a'R,4b'S,8a'S,10a'S)-2'-hydroxy-2'-isopropyl-4b',8',8'-trimethyldecahydro-1'H-spiro[[1,3]dioxolane-2,4'-phenanthren]-3'(2'H)-one

11,11-ethylenedioxy-9βH-abieta-13(15)-en-12-one